Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

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Google has added a bunch of examples to the potentialAction.mathExpression-input section of the Math Solver help documentation. These examples explain how to handle derivatives, integrals, and limits ...

Creative Commons (CC): This is a Creative Commons license. Attribution (BY): Credit must be given to the creator. Delivery and focusing of radiation requires a variety of optical elements such as ...

As a past member and chair of the Port of New Orleans Dock Board, I read with great interest — and dismay — recent reports that the Port of South Louisiana plans to spend $445 million to buy the old ...

It would be nice to have a tutorial showing how to use non-axisymmetric sources in cylindrical coordinates by expanding the source in a exp(imφ) Fourier series. For example: LDOS for off-axis points.

Abstract: In this paper, the z-axis orientation of the cylindrical coordinate system in the Sommerfeld integral is discussed. By the way of the rotation of coordinate system, the magnetic vector ...